Question

I have a navigation bar and I want to access a random URL from a distinct list associated with each link. Link A would access List A, link B would access List B, and so on. I have been using a javascript code from 1997 that works great for one link:

载于js文档中的“设计”;

rnd.today=new Date();
rnd.seed=rnd.today.getTime();

function rnd() {
        rnd.seed = (rnd.seed*9301+49297) % 233280;
        return rnd.seed/(233280.0);
};

function rand(number) {
        return Math.ceil(rnd()*number);
};

var item = 0;
var URL = new Array();

URL[item++] =  listitema.php ;
URL[item++] =  listitemb.php.php ;
URL[item++] =  listitemc.php ;

function randomJump() {
    var random = rand(item) - 1;
    location.href = URL[random];
};

<-end js file:->

查阅:

<a href="javascript:randomJump()" onmouseover="self.status=  ;return true">

While this code works well for one link per page, I now need to have it work for multiple links, each with a different reference list. I have no idea how to make this a script that works for each link without interfering with other links. Thank you.

Answer 1

这里的职能范围很小,与许多不同的URL清单合作,正如你想要的那样:

var listA = [
     listitem-a.php ,
     listitem-b.php ,
     listitem-c.php 
];

var listB = [
     listitem-1.php ,
     listitem-2.php ,
     listitem-3.php 
];

var listC = [
     listitem-x.php ,
     listitem-y.php ,
     listitem-z.php 
];

function goRandomURL(list) {
    window.location = list[Math.floor(Math.random() * list.length)];
}

然后,为了使用<代码>listA,请:

goRandomURL(listA);

或将其置于这样的联系之中:

<a href="#" onclick="goRandomURL(listA)">

或者为了名单B,你将使用:

<a href="#" onclick="goRandomURL(listB)">

单凭“javascriptMath.random(),在0到1之间(不包括1个)作为浮动体的随机回归,并且根据当地环境已经播种,因此,你无需介绍自己的种子或随机功能。然后,随机数量按阵列的长度加以缩小,然后四舍五入到阵列指数的整数。这产生了对我们阵列选择随机指数的效果。它自动跟踪阵列的长度,以便你可以自由地从阵列中增加/删除物品,而不会以任何方式改变守则。

EDIT - to help you on your current code. In your current code, I see this:

var listA = [
     orange.php ;
     red.php ;
     blue.php ;
];

var listB = [
     gold.php ;
     silver.php ;
     bronze.php ;
];

var listC = [
     olive.php ;
     pink.php ;
     purple.php ;
];

应当:

var listA = [
     orange.php ,
     red.php ,
     blue.php 
];

var listB = [
     gold.php ,
     silver.php ,
     bronze.php 
];

var listC = [
     olive.php ,
     pink.php ,
     purple.php 
];

而且:

goRandomURL(list) {
    window.location = list[Math.floor(Math.random() * list.length)];
}

应:

function goRandomURL(list) {
    window.location = list[Math.floor(Math.random() * list.length)];
}

友情链接